Heated Seat Always On. Cadillac Seville 2003

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2003 🢒 Seville 🢒 Body and Accessories 🢒 Seats 🢒 Heated Seat Always On

Step	Action	Yes	No
Schematic Reference: Heated Seats Schematics Connector End View Reference: Power Seat Connector End Views
1	Did you perform the Diagnostic System Check - Power Seat Systems?	Go to Step 2	Go to Diagnostic System Check - Power Seat Systems
2	Verify that the Heated Seat Always On complaint is present. Does the heated seat system operate as described in the system description and operation?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Inspect the front seat. Is only the seat cushion warm?	Go to Step 6	Go to Step 4
4	Disconnect the heated seat switch harness connector. Did the seat cool down?	Go to Step 9	Go to Step 5
5	Disconnect the heated seat module connector C3. Test the seat back heating element circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 12	Go to Step 7
6	Disconnect the heated seat module connector C2. Test the seat cushion heating element circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 12	Go to Step 8
7	Disconnect the heated seat module connector C1. Test the heated seat high/low signal circuit between the heated seat module and the heated seat switch for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 12	Go to Step 8
8	Inspect for poor connections at the harness connector of the heated seat module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 12	Go to Step 10
9	Inspect for poor connections at the harness connector of the heated seat switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition?	Go to Step 12	Go to Step 11
10	Replace the heated seat module. Refer to Front Seat Heater Control Module Replacement . Did you complete the replacement?	Go to Step 12	--
11	Replace the heated seat switch. Refer to Front Seat Heater Switch Replacement . Did you complete the replacement?	Go to Step 12	--
12	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 2